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Assessment  of pipeline  defects


        ACKNOWLEDGEMENTS


        The author would  like to thank British Gas pic for permission to publish
     this paper, and all his colleagues at the Engineering Research Station and the
     On-line Inspection  Centre who  have contributed to the paper.




        REFERENCES


      1. J.F.Keifner etal., 1973. Failure stress levels of flaws in pressurized cylinders.
        ASTM  STP 536,  pp  461-481.
      2. R.W.E.Shannon, 1974. The failure behaviour of line pipe defects.  JntJPress
        Vess and  Piping,  2, pp  243-255.
     3.  P.Hopkins,  1990.  Interpretation  of  metal loss  as repair  or  replacement
        during  pipeline  refurbishment. Proc. European Pipeline Rehabilitation
        Seminar, London, May, Paper  8.
     4.  Anon.,  1983.  Procedures  for  inspection  and  repair  of  damaged  steel
        pipelines designed to operate at pressures-above 7 bar. BGC/PS/P11, Dec.
      5. Anon., 1979. Liquid petroleum transportation piping system. ANSI/ASME B
        31.4, Chapter VII, pp  52-59.
     6. R.Gribben,  1989. New rules to improve safety of oil and gas pipelines. The
        Daily  Telegraph,  UK, 20 June.
     7.  J.Keen,  1990.  Corrosion  forces  repairs  to  oil  pipelines.  US  Today,  5
        February.
     8.  BJ.Parry  and  D.G.Jones,  1988.  On-line inspection  - state  of  the  art  and
        reasons  why.  Gas Transportation  Symposium, January, Haugesund, Nor-
        way.
     9. R.W.E.Shannon, 1985. On-line inspection  of offshore pipelines. Middle East
        Oil Technical Conference,  SPE 1985, Bahrain, March, Paper SPE 13684.
      10. Anon., 1980.  Guidance on some methods for the derivation of acceptance
        levels for defects in fusion  welded joints. BSIPD 6493.
      11. R.I.Coote etal, 1988.  Alternative girth weld acceptance standards in the
        Canadian gas pipeline code. 3rd Int Conf on Welding and Performance of
        Pipelines. The Welding Institute, London, November, Paper  21.
      12. Anon.,  1984.  Manual for determining the remaining strength of corroded
        pipelines.  ANSI/ASME B.31 G-1984, ASME.
      13. A.G.Miller, 1988.  Review of limit loads of structures containing defects.  Int
        J  of  Pressure  Vess and  Piping, 32, Nos.1-4, p!95.



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